Hierarchical Self-Organization of Chiral Columns from Chiral Supramolecular Spheres

The supramolecular column is an archetypal architecture in the field of periodic liquid crystalline and crystalline arrays. Columns are generated via self-assembly, coassembly, and polymerization of monomers containing molecules shaped as discs, tapered, twin- and Janus-tapered, crowns, hat-shaped crowns, and fragments thereof. These supramolecular columns can be helical and therefore exhibit chirality. In contrast, spheres,represent a fundamentally distinct architecture, generated from conical and crown-like molecules, which self-organize into body-centered cubic, Pm (3) over barn cubic (also known as Frank-Kasper A15), and tetragonal (also known as Frank-Kasper sigma) phases. Supramolecular spherical aggregates are not known to further assemble into a columnar architecture, except as an intermediate state between a columnar periodic array and a cubic phase. In the present work, a chiral dendronized cyclotetraveratrylene (CTTV) derivative is demonstrated to self-organize into a supram